How to give children nightmares at night.

fpointers.c

/* 
 * How to give children nightmares at night.
 */
#include <stdio.h>

int func_a(int a, int b){ return a + b; }
int func_b(int a, int b){ return a - b; }
int func_c(int a, int b){ return a * b; }
int func_d(int a, int b){ return a / b; }

int main(int argc, char ** argv)
{
  int i;
  int (*f[4])(int, int);

  f[0] = func_a; 
  f[1] = func_b;
  f[2] = func_c; 
  f[3] = func_d;

  for (i = 0; i < sizeof(f) / sizeof(int *); ++i)
  {
    printf("%d\n", (*f[i])(2, 5));
  }

  return 0;
}